31. . Be careful or you may have an accident.

ð If ...

32. . phone your parents or you have a trouble.

ð If

33. . She doesn’t have enough money, so she can’t buy that book

ð If

34. She can't go to school today because she is ill.

ð If she

35. We don’t go on holiday because the weather is bad.

à If

36. We got lost in the jungle because we didn’t have a map.

-> If we had

37. Work hard and you will pass the exam.

@ If you

38. If we get a key , we will able to get into the house.

=> Unless

39. My advice is that Mary should apply for that job.

=> If I

40. Unless the weather is bad, we’ll go on a picnic tomorrow.

=> If the weather_

41. Why don’t you use energy-saving bulbs?

=> If

42. I want to have a new computer, but I don’t have enough money.

=> If I

  51.She doesn’t go to China with us.

→We wish ………………………………………………………………………………………………

  52.He can’t buy this bike because he doesn’t have enough money.

→If ………………………………………………………………………………………………………

  53.Study hard or you will fail the final exam.

→If ………………………………………………………………………………………………………

  54.I’m sorry, I cant speak English fluently.

→I wish …………………………………………………………………………………………………

  55.It’s a pity that you aren’t here now.

→I wish ………………………………………………………………………………………………….

  56.This problem seems diffficult for her.

→She wishes ……………………………………………………………………………………………

  57.Water these flowers or they will die.

→Unless …………………………………………………………………………………………………

  58.You practise your English regularly, and your English will improve.

→If ………………………………………………………………………………………………………

  59.The students don’t study hard.

→I wish …………………………………………………………………………………………………

  60.He spent 2 hours writing the letter.

→It took …………………………………………………………………………………………………

  61.”Will you visit the Taj Mahal ?”He asked me.

→He asked me …………………………………………………………………………………………..

  62.Peter usually played soccer but now he doesn’t play anymore.

→Peter used ……………………………………………………………………………………………                                                                                                        

  63.I don’t have free time, so I can’t help you.

→If ………………………………………………………………………………………………………  

  64.They built that house 100 years ago.

→That house ……………………………………………………………………………………………

  65.I lent your book. It was written by a friend of mine. She lives in France.

→That book I ……………………………………………………………………………………………

  66.He intended to make a long journey with her 
→ He had………………………………………………………………………………………………  

67. He is going to visit her friends in HCM city 
→He is going to ……………………………………………………………………………………
  68. He decided to buy his house 2 years ago -
→He made …………………………………………………………………………………………

  69. He has no intention of leaving the city 
→He doesn't ………………………………………………………………………………………  

70. In stratford-on-Avon, we saw Shakespare's birthplace 
→We saw the house ……………………………………………………………………………….
  71. I'm sure you didn't lock the front door. Here is the key 
→You can't ……………………………………………………………………………………………..
  72. You don't need to talk so loudly
→There is ………………………………………………………………………………………………
  73.The train couldn't run because of the snow.

 →The snow ……………………………………………………………………………………………..
  74.He learned to drive when he was 10 years old.
→He has ………………………………………………………………………………………………...
  75. He failed to win the race.
→He didn't ………………………………………………………………………………………………
  76. A train leaves at eight o'clock every morning.
→There is ………………………………………………………………………………………………..
  77. My suit needs to be cleaned before the meeting.
→I must ………………………………………………………………………………………………...
  78. "You stole my best cassette, Amanda".
→William accused ……………………………………………………………………………………...
  79. The train journey from London to Bristol takes two hours.
→ It is a ………………………………………………………………………………………………….
  80. It was careless of you to leave the window open lastnight.
→You shouldn't ………………………………………………………………………………………..
  81. Alice finds it easy to make friends.
→Alice has no ………………………………………………………………………………………….
  82. The man injured in the accident was taken to the hospital.
→The man who ………………………………………………………………………………………..
  83. Nam and his family went on a trip to their home village for two days. 
→Nam and ……………………………………………………………………………………………...

  84. They haven't phoned us for a month.
→It has been ……………………………………………………………………………………………
85. Excuse me, aren't you employed by that company?
→ Excuse me, don't you…………………………………………………………………………………
  86. I've never been to a less exciting concert.
→It was …………………………………………………………………………………………………
  87. That old key board is not worth repairing.
→It is pointles …………………………………………………………………………………………..
  88. I can't hardly understand a word of this.
→ (difficulty) …………………………………………………………………………………………...

  89. "Why don't you postpone your trip till the fall, Jim?"
→Mary postpone …………………………………………………………………………………... off.
  90. Was it your idea that I should pay?
→Did you mean ………………………………………………………………………………………...
  91. I was never shown you how to operate that machine.
→At no time …………………………………………………………………………………………….
  92. We have no definite plans to go away.
→ We are not ……………………………………………………………………………………………
  93. A locksmith makes and repairs locks.
→A locksmith is ………………………………………………………………………………………...
  94. They have no money to buy this house.
→They don't ……………………………………………………………………………………………
  95. Orginally, tennis was an indoor game.
→Tennis used …………………………………………………………………………………………

  96.I used to own a dog. People came to the door. The dog never barked at them.

→The dog ………………………………………………………………………………………………

  97.I bought my car from a woman. She lives in a house. You can see the house over there.

→The woman I …………………………………………………………………………………………

  98.My friend Bill has decidedto buy a motorbike. His car was stolen last week.

→My friend Bill, ………………………………………………………………………………………..

  99.I bought a new car. It cost me a lot of money.

→The new ………………………………………………………………………………………………

  100.Please don’t leave your motorbike outside the back door.

→I’d rather ……………………………………………………………………………………………..

51.She doesn’t go to China with us.
→We wish ………………………………………………………………………………………………
52.He can’t buy this bike because he doesn’t have enough money.

3

→If ………………………………………………………………………………………………………
53.Study hard or you will fail the final exam.
→If ………………………………………………………………………………………………………
54.I’m sorry, I cant speak English fluently.
→I wish …………………………………………………………………………………………………
55.It’s a pity that you aren’t here now.
→I wish ………………………………………………………………………………………………….
56.This problem seems diffficult for her.
→She wishes ……………………………………………………………………………………………
57.Water these flowers or they will die.
→Unless …………………………………………………………………………………………………
58.You practise your English regularly, and your English will improve.
→If ………………………………………………………………………………………………………
59.The students don’t study hard.
→I wish …………………………………………………………………………………………………
60.He spent 2 hours writing the letter.
→It took …………………………………………………………………………………………………

1.      He can’t go out because he has to study for his exam.
=> If…………………………………………………..

2.      She is lazy so she can’t pass the exam.
If…………………………………………………………

3.      He will pay me tonight; I will have enough money to buy a car.
=> If…………………………………………………………….

4.      He smokes too much; that’s why he can’t get rid of his cough.
=> If……………………………………………………………..

5.      She is very shy, so she doesn’t enjoy the party.
=> If……………………………………………………………..

6.      I will get a work permit. I will stay for another month.
=> If……………………………………………………………..

7.      He doesn’t take any exercises. He is so unhealthy
=> If……………………………………………………………….

8.      We can’t get the ticket because I don’t have the right change.
=> If………………………………………………………………..

9.      Study hard or you won’t pass the exam.
=> If…………………………………………………………………..

10.  Don’t be impatient or you will make mistakes.
=> If……………………………………………………………………..

11.  I didn’t eat lunch, I feel hungry now.
=> If I…………..………………………………….

12.  I only come if they invite me.
=> unless……………………………………………….

13.  He didn’t revise all his lessons, he failed the exam.
=> If he………………………………………………………..

14.  The park is over there, only 5 minutes’ walk.
=> If you walk……………………………………………….

15.  Leave me alone or I’ll call the police.

=>Unless……………………………………………………………………………………

16.  If you arrive at the office earlier than I do, please turn on the air-conditioner.

=> Should……………………………………………………………………………….     

17.  The children don’t go to school in the snowy weather.

=> If it ………………………………………………………………………………           

18.  He died so young; otherwise, he would be a famous musician by now.

=>Had ………………………………………………………………………………           

19.  You must tell me the whole truth or I won’t help you.

=> Unless………………………………………………………………………………       

20.  The car breaks down so often because you don’t take good care of it.

=> Were I………………………………………………………………………………      

21.  He is very bad-tempered, that’s why his wife left him soon after marriage.

=> If he………………………………………………………………………………

22.  Don’t tell lies to your boss or you’ll be fired at once.

=> If……………………………………………………………………………

23.  She got married at such an early age: otherwise, she would be at university now.

=> Had ………………………………………………………………………….

Rewrite the sentences without changing the meaning.

1. He can’t go out because he has to study for his exam.

→ If ..................................................................................................................................

2. She is lazy so she can’t pass the exam.

→ If ..................................................................................................................................

3. He will pay me tonight; I will have enough money to buy a car.

→ If ..................................................................................................................................

4. He smokes too much; that’s why he can’t get rid of his cough.

→ If ..................................................................................................................................

5. She is very shy, so she doesn’t enjoy the party.

→ If ..................................................................................................................................

6. I get a work permit. I will stay for another month.

→ If ..................................................................................................................................

7. He doesn’t take any exercises. He is so unhealthy.

→ If ..................................................................................................................................

8. We can’t get the ticket because I don’t have the right change.

→ If ..................................................................................................................................

9. Study hard or you won’t pass the exam.

→ If ..................................................................................................................................

10. Don’t be impatient or you will make mistakes.

→ If ..................................................................................................................................

Viết lại câu:

1. She doesn’t have enough money, so she can’t buy this car.

-> If ……………………………………………………………..

2. I last heard from my sister 5 months ago.

-> I haven’t ………………………………………………………

3. They have built two department stores this year.

-> Two department ………………………………………………

4. “ My grandparents still live in Nha Trang now.” Lan said to me.

-> Lan told me that ………………………………………………..

5. Mr Nam couldn’t continue his work because he was tired.

-> Mr Nam was too ………………………………………………

Viết lại câu:

1. She doesn’t have enough money, so she can’t buy this car.

-> If ……………………………………………………………..

2. I last heard from my sister 5 months ago.

-> I haven’t ………………………………………………………

3. They have built two department stores this year.

-> Two department ………………………………………………

4. “ My grandparents still live in Nha Trang now.” Lan said to me.

-> Lan told me that ………………………………………………..

5. Mr Nam couldn’t continue his work because he was tired.

-> Mr Nam was too ………………………………………………

6. She doesn’t go to school regularly.

-> I wish ………………………………………………………….

7. He has been a university professor for ten years.

-> He became …………………………………………………….

8. I think we should put some garbage bins around the school yard.

-> I suggest ………………………………………………………..

9. They used to make the children study harder.

-> The children …………………………………………………….

10. We couldn’t go to the zoo because it rained heavily.

-> Because of ……………………………………………………..